Dkiving mechamtsm toe



D. D. DULL.

DRIVING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED MAR. 24. 1916- 1 1 95,663 Patented Aug. 22, 1916.

INVENTOR DANIEL D. DULL, OF YOUNGSTOWN, OHIO.

DRIVING MECHANISM FOR WASHING-MACHINES.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed March 24, 1916. Serial No. 86,340.

To all whom it may concern:

Be it known that I, DANIEL D. DULL, a citizen of the United States of America, and resident of Youngstown, county of Mahoning, and State of Ohio, have invented certain new and useful Improvements in Drlving Mechanisms for Washing-Machines, of which the following is a specification.

This invention relates broadly to Washing machines, and more particularly to gearing for driving washing machines.

The primary object of the invention is to provide a simple drive gear for the rotary dolly shaft of a common type of laundry washing machine, said gearing involving means for converting the rotary motion of a prime mover to a reciprocating motion.

A further object is to provide a washlng machine the moving parts of which are adapted to be actuated by a turbine or electric motor or other prime mover designed to transmit power through a rotatable shaft.

With these and other objects in view, the invention resides in the features of construction, arrangement of parts and combinations of elements which will hereinafter be exemplified, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of awashing machine embodying my invention, the same being shown associated with a turbine type of motor. Fig. 2 is a top plan view of the invention; Fig. 3 is a vertical section on the line 83, Fig. 2; and Fig. 4 is a detail section of the rack-bar guide.

Referring to said drawings, in which like designating characters, distinguish like parts throughout the several views-1 indicates the tub, 2 the dolly shaft or stirrer shaft, and 3 the dolly of a common type of washing machine, said shaft having fixed upon its upper end a pinion 4 through which rotary motion is imparted to said shaft.

Rigidly mounted upon the hinged lid or cover 5 of the tub and constituting a bearing for the shaft 2 is a metal casting which comprises a base 6, substantially upright legs 7 formed integral with said base, and a head 8 formed integral with said legs, said head being located a spaced distance above said base. Vertically alined bearings 9 and 10 are formed upon the opposing faces of said head and base, respectively, for receiving the shaft 2, said bearings being separated such a distance as renders the pinion 4 receivable therebetween, as shown in Fig. 1.

Disposed in operative engagement with the pinion is a horizontally reciprocable rack-bar 11 the rear face of which is preferably engaged by one or more anti-friction rollers 12 by which said rackbar is main tained in operative relation to said pinion. Said rollers are journaled in lateral extensions 6 and 8 respectively formed on said base 6 and said head 8.

A metal bracket 13 is also rigidly mounted upon the lid 5 so as to project outward beyond the edge of the tub, and formed in the outer end of said bracket is a bearing 14 in which is journaled a transverse shaft 15 having a pulley or belt-wheel 16 fixed on one end and a crank-arm 17 on the other end thereof. Pivoted upon a wrist-pin 18 carried by the crank 17 is one end of a pit man 19 which has its opposite end pivoted upon a wrist-pin 20 fixed on the rear face of the rack-bar 11, as shown in Figs. 2 and 3.

The rack-bar carries on its outer end an arm 11 which is disposed somewhat out of axial alinement therewith so that it will not interfere with the movement. of the crank 17 and so that it will be received in a suitable guideway, as 21, formed in the bracket 13, said guideway being disposed in parallel alinement with said rack-bar and being designed to guide the latter in its movements.

Rotary movement may be imparted to the pulley or belt-wheel 16 from any suitable source of motive power, as from the water motor, or turbine, illustrated in Fig. 1, wherein is disclosed a water-driven powerwheel 22 located within a casing'23 and having its shaft 24 connected by a suitable train of speed reducing belts and wheels to said belt-wheel 16.

The bracket 13 may be, and preferably is, formed integral with the casting in which the shaft-bearings 9 and 10 are embodied,

' as is clearly shown in Fig. 1, being connected to the base 6 by a connecting member 13* which lies flat upon the lid 5. Thus not only is a rigid mounting afforded for the station ary parts, but the maintenance of said bracket and shaft-bearings in permanent fixed relation to each other is provided for.

It will be understood that, while I have herein shown and described a practical embodiment of the invention, the latter is not confined to a strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention as hereinafter defined.

What is claimed is 1. In driving mechanism for washingmachines, a casting for mounting on the lid of a tub, said casting comprising a base and a head having bearings for the dolly-shaft formed thereon, a pinion fixed on said dolly shaft between said bearings, a reciproca-tory rack-bar in operative relation with said pinion, meansv for guiding said rack-bar, a bracket mounted on said tub lid and overhanging the edge of the tub, a bearing formed in said bracket a drive-shaft journaled in said bearing and disposed substantially tangential with respect'to the tub, a crank carried by said shaft, and a pitman connecting said crank to said rack bar at a pointintermediate the ends of the latter.

2. In driving mechanism for washing machines, a casting for mounting on the lid of a tub, said casting comprising a base and a head having bearings for the dolly-shaft formed thereon, a pinion fixed on said dolly shaft between said bearings, a reciprocatory rack-bar in operative relation with said pinion, a bracket mounted on said tub lid and overhanging the edge of the tub and havlng a bearing formed therein, a drive-shaft journaled in said bearing, a crank carried by said shaft, a pitman connecting said crank to I said rack-bar at a point intermediate the ends of the latter, an arm carried by said rack-bar and disposed in parallel alinement with the latter, and a guideway in which said armvis received.

3. In driving mechanism for washing machines, a casting for mounting on the lid of a tub, said casting comprising a base and a head having bearings for the dolly-shaft formed thereon, a pinion fixed on said dolly shaft between said bearings, a reciprooatory rack-bar in operative relation with said pinion, means for guiding. said rack-bar, a bracketmounted on' said tub lid and overhanging the edge'of the tub, said bracket being an integral=part of said casting. and jointed to said base by a connecting member which rests upon the tub lid, said bracket having a bearing :formed therein, a drive-shaft journaled in said bearing, a crank carried by said shaft, and a pitman interposed between" said crank and said rack bar.

In testimony whereof, I affiX my signaturein presence of two subscribing witnesses.

DANIEL D. DULL. WVitnesses H ARTHUR JUGLE, J B. Ross.

Copies of this patent may be obtained for five cents each, lay-addressing; the (lommissionerof Patents,

Washington, D; G. i 

